Tank

ABSTRACT

A tank, including: a foldable liquid container; and a frame, for housing the foldable liquid container, thereby avoiding collapse of the foldable liquid container.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of priority from Israel PatentApplication No. 252013, filed Apr. 27, 2017, the disclosure of which isincorporated herein by reference.

TECHNICAL FIELD

The invention relates to the field of liquid containers. Moreparticularly, the invention relates to a fortified liquid container.

BACKGROUND

A liquid container must be very massive for bearing the hydrostaticpressure of the contained liquid, which without being massive, mightlikely collapse the liquid container.

There is a long felt need to provide a solution to the above-mentionedand other problems of the prior art.

SUMMARY

A tank, including:

a foldable liquid container; and

a frame, for housing the foldable liquid container, thereby avoidingcollapse of the foldable liquid container.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments, features, and aspects of the invention are described hereinin conjunction with the following drawings:

FIG. 1 depicts a liquid container in two states, according to oneembodiment of the invention.

FIG. 2 depicts a frame for housing the liquid container of FIG. 1 in twostates, according to one embodiment of the invention.

FIG. 3 depicts a fortified foldable tank in two states, according to oneembodiment of the invention.

FIG. 4 is a front sectional view of the tank of FIG. 3.

FIG. 5 is a magnification of a certain region of the tank of FIG. 3.

FIG. 6 is a rear view of the height locking element of FIG. 5.

FIG. 7 depicts placement of two tanks of FIG. 3, one on top of theother.

FIG. 8 is a magnification of the side opening of FIG. 7.

FIG. 9 depicts the first step of using a tank according to anotherembodiment.

FIG. 10 depicts the second and third steps of using the tank of FIG. 9.

FIG. 11 depicts the fourth step of using the tank of FIG. 9.

The drawings are not necessarily drawn to scale.

DETAILED DESCRIPTION

The invention will be understood from the following detailed descriptionof embodiments of the invention, which are meant to be descriptive andnot limiting. For the sake of brevity, some well-known features are notdescribed in detail.

The reference numbers have been used to point out elements in theembodiments described and illustrated herein, in order to facilitate theunderstanding of the invention. They are meant to be merelyillustrative, and not limiting. Also, the foregoing embodiments of theinvention have been described and illustrated in conjunction withsystems and methods thereof, which are meant to be merely illustrative,and not limiting.

FIG. 1 depicts a liquid container in two states, according to oneembodiment of the invention.

A liquid container 10A includes foldable and extendible walls 80; and anopening 16.

Thus liquid container 10A may occupy a small volume, while being empty,or occupy a large volume while containing the liquid.

However, there is yet a problem in that liquid container 10A alone isnot sufficient for bearing the hydrostatic pressure of the containedliquid, producing for instance a protrusion 22, and which might likelycollapse liquid container 10A.

FIG. 2 depicts a frame for housing the liquid container of FIG. 1 in twostates, according to one embodiment of the invention.

A frame 10B includes foldable and extendible arms 82.

Thus, frame 10B may provide a small volume, for housing liquid container10A (not shown) while being empty; or may occupy a large volume, forhousing liquid container 10A (not shown) while containing the liquid.

FIG. 3 depicts a fortified foldable tank in two states, according to oneembodiment of the invention.

A tank 10C includes liquid container 10A, housed by foldable frame 10B.

The volume of tank 10C is a function of the amount of contained liquid.

The collapse, shown by protrusion 22 of FIG. 1, is avoided by aplurality of horizontal bars 84A, 84B, each being rigid, as presented byrigid corners 86, and horizontally surrounding liquid container 10A.

The distance between each adjacent horizontal bars is equal, whereas thecurrent distance and the current vertical location of each of horizontalbars 84A, 84B is a function of the extent of opening of the crossoverarms 82 of foldable frame 10B.

According to another embodiment, frame 10B is not foldable.

FIG. 4 is a front sectional view of the tank of FIG. 3.

The natural pressure of the contained liquid may be sufficient, fordetermining the extent of the opening of crossover arms 82.

A float 48, being lifted by the top level of the liquid 46, may lift thetop plate 12 of foldable tank 10C, for lifting, the top of frame 10B,through connecting elements 60.

Once liquid 46 is removed from foldable tank 10C, vertical springs 44may induce folding of frame 10B, which may induce, through connectingelements 60, folding of foldable tank 10C.

The lifting force of float 48 is to be stronger than the folding forceof springs 44.

Connecting elements 60 may be rotated, as shown by arrow 90, forcanceling the connection, for allowing removing foldable liquidcontainer 10A from frame 10B.

FIG. 5 is a magnification of a certain region of the tank of FIG. 3.

One or more height locking elements 38 may be added to fix the extent ofthe opening of crossover arms 82.

FIG. 6 is a rear view of the height locking element of FIG. 5.

Height locking element 38 may include a plurality of slits 40, each forhousing one horizontal bar, such as 84B, or of arms 82.

FIG. 7 depicts placement of two tanks of FIG. 3, one on top of theother.

Height locking element 38 may strengthen one tank 10C so as to place itbelow another one.

Liquid may be dispensed from a side cap 76.

FIG. 8 is a magnification of the side opening of FIG. 7.

FIG. 9 depicts the first step of using a tank according to anotherembodiment.

At the first step, being while tank 10C is folded, the user inserts abag assembly 92, through top opening 16 of liquid container 10Athereinto.

Bag assembly 92 includes a plate 106, and a bag 96, the bottom 98thereof being stuck to plate 106.

Plate 106 is rigid, for naturally deploying on the floor of liquidcontainer 10A. Plate 106 may include one or more folds 102, for formingplate 106 to two or more subsidiary plates 94A, 94B, etc., for allowinginsertion through opening 16.

FIG. 10 depicts the second and third steps of using the tank of FIG. 9.

At the second step, the user may insert his hand 104, to press plate 106onto the floor 108 of liquid container 10A, since liquid container 10Ais yet folded, thus being low.

Thus, according to this embodiment, tank 10C includes as well bagassembly 92.

At the third step, liquid 18 is poured.

FIG. 11 depicts the fourth step of using the tank of FIG. 9.

Upon filling liquid 18, liquid 18 neatly deploys bag 96, and extendsliquid container 10A together with frame 10B.

Thus, in one aspect, the invention is directed to a tank (10C),including:

-   -   a foldable liquid container (10A); and    -   a frame (10B), for housing the foldable liquid container (10A),        thereby avoiding collapse (22) of the foldable liquid container        (10A).

The frame (10B) may be vertically foldable.

The frame (10B) may include:

-   -   a plurality of rigid peripheral horizontal bars (84A, 84B);    -   a plurality of vertically foldable crossover arms (82), for        extending between the plurality of rigid peripheral horizontal        bars (84A, 84B).

The foldable liquid container (10A) may include a float (48) forenlarging the height of the foldable liquid container (10A) to conformto the amount of the contained liquid (46).

The frame (10B) may include:

-   -   a spring (44), for diminishing the height of the frame (10B) to        conform to the amount of the contained liquid (46).

The tank (10C) may further include:

-   -   a connecting element (60), for connecting the top of the frame        (10B) to the top (12) of the foldable liquid container (10A).

The tank (10C) may further include:

-   -   at least one height locking element (38), for fixing the height        of the frame (10B).

The tank according may further include:

-   -   a bag (96), including a plate (106) being stuck thereto, for        being inserted into the liquid container (10A) while being        folded,

thereby the plate (106) is accessible from the top (16) of the liquidcontainer (10A) for deploying the bottom (98) of the bag (96),

thereby filling of liquid (18) neatly deploys the bag (96) within theliquid container (10A) while unfolding thereof.

In the figures and/or description herein, the following referencenumerals (Reference Signs List) have been mentioned:

-   -   numeral 10A denotes the foldable liquid container, according to        one embodiment of the invention;    -   numeral 10B denotes the foldable frame;    -   numeral 10C denotes the foldable tank, including at least        foldable liquid container 10A and foldable frame 10B;    -   numeral 14 denotes the top cap;    -   numeral 16 denotes a depression for the top cap, thereby the cap        does not protrude, thereby allowing placing one container on the        other;    -   numeral 18 denotes the liquid;    -   numeral 22 denotes a protrusion;    -   numeral 24 denotes a grid;    -   numeral 26 denotes a hinge between two arms;    -   numeral 38 denotes the height locking element;    -   numeral 40 denotes a slit, for holding an arm or bar;    -   numeral 46 denotes the contained liquid;    -   numeral 48 denotes a float;    -   numeral 60 denotes a connecting element;    -   numeral 72 denotes a lifting plate;    -   numeral 76 denotes a side cap;    -   numeral 80 denotes the foldable wall of the container;    -   numeral 82 denote a crossover foldable extendible arm;    -   numerals 84A, 84B and 84C denote peripheral horizontal rigid        bars, each forming a closed form;    -   numeral 86 denotes a rigid corner;    -   numeral 90 denotes rotation or any other disconnecting operation        of the connecting element;    -   numeral 92 denotes the bag assembly;    -   numerals 94A and 94B denote the subsidiary plates;    -   numeral 96 denotes the bag;    -   numeral 98 denotes the bag's bottom;    -   numeral 102 denotes a fold;    -   numeral 104 denotes the user's hand;    -   numeral 106 denotes the plate of the bag assembly;    -   numeral 108 denotes the floor of the liquid container.

The foregoing description and illustrations of the embodiments of theinvention has been presented for the purposes of illustration. It is notintended to be exhaustive or to limit the invention to the abovedescription in any form.

Any term that has been defined above and used in the claims, should tobe interpreted according to this definition.

The reference numbers in the claims are not a part of the claims, butrather used for facilitating the reading thereof. These referencenumbers should not be interpreted as limiting the claims in any form.

What is claimed is:
 1. A tank, comprising: a foldable liquid container;and a frame, for housing said foldable liquid container, therebyavoiding collapse of said foldable liquid container.
 2. A tank accordingto claim 1, wherein said frame is vertically foldable.
 3. A tankaccording to claim 2, wherein said frame comprises: a plurality of rigidperipheral horizontal bars; and a plurality of vertically foldablecrossover arms, for extending between said plurality of rigid peripheralhorizontal bars.
 4. A tank according to claim 2, wherein said foldableliquid container comprises a float for enlarging a height of saidfoldable liquid container to conform to an amount of contained liquid.5. A tank according to claim 2, wherein said frame comprises: a spring,for diminishing a height of said frame to conform to an amount ofcontained liquid.
 6. A tank according to claim 2, further comprising: aconnecting element, for connecting a top of said frame to a top of saidfoldable liquid container.
 7. A tank according to claim 2, furthercomprising: at least one height locking element, for fixing a height ofsaid frame.
 8. A tank according to claim 1, further comprising: a bag(96), comprising a plate being stuck thereto, for being inserted intosaid liquid container while being folded, thereby said plate isaccessible from a top of said liquid container for deploying a bottom ofsaid bag, thereby filling of liquid neatly deploys said bag within saidliquid container while unfolding thereof.